Analysis of Acoustic Emission Activity during Progressive Failure in Heterogeneous Materials: Experimental and Numerical Investigation

This work focuses on an experimental and numerical investigation into monitoring damage in a cube-shaped concrete specimen under compression. Experimental uses acoustic emission (AE) signals acquired by two independent measurement apparatuses, the same process is numerically simulated with lattice discrete element method (LDEM). The results from experiment simulation are then compared terms of their failure load, final configurations, evolution global parameters based AE signals, such as b-value coefficient natural time approach. It concluded that analysis present significant sensitivity to characteristics acquisition systems. However, methods more robust for determining differences, indicating general tendency all three data sets.